The binomial coefficient C(m,n) is defined as
m!
C(m,n) = --------
n!(m-n)!
Given four natural numbers p, q, r, and s, compute the the result of dividing
C(p,q) by C(r,s).
T...
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其他好文 时间：
2014-08-18 23:37:43
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274
1. First of all, you will need to be clear on your intentions. Do you really want to play the violin? or was this wish merely conceived when your best...
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2014-08-18 20:08:42
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To choose a random word from the histogram, the simplest algorithm is to build a list with multiple copies of each word, according to the observed fre...
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其他好文 时间：
2014-08-17 19:47:42
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题意：看那张图就一清二楚了吧， N个序列首位相连（相同的序列部分），得到最短的总序列。
题目链接：http://poj.org/problem?id=1699
~~~~
思路就是：将N个序列首尾相连能重合的长度求粗来。然后DFS枚举每种首尾相连的情况。
#include
#include
#include
#define N 22
#define INF 0x7fffffff
us...
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其他好文 时间：
2014-08-16 22:32:41
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DescriptionBessie has moved to a small farm and sometimes enjoys returning to visit one of her best friends. She does not want to get to her old home ...
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数据库 时间：
2014-08-16 11:08:00
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268
Description
In order to make their sons brave, Jiajia and Wind take them to a big cave. The cave has n rooms, and one-way corridors connecting some rooms. Each time, Wind choose two rooms x and y, an...
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其他好文 时间：
2014-08-15 00:06:46
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斜率优化DP。。。《浅谈数形结合思想在信息学竞赛中的应用 安徽省芜湖一中 周源》例题。。。
Best Cow Fences
Time Limit: 1000MS
Memory Limit: 30000K
Total Submissions: 9311
Accepted: 2986
Description...
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其他好文 时间：
2014-08-14 23:56:26
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568
1290: Random IntegersTime Limit:1 SecMemory Limit:128 MBSubmit:72Solved:45[Submit][Status][Web Board]DescriptionWe choose an integer K (K > 0). Then w...
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2014-08-14 23:48:26
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211
401.Which of the following are correct about block media recovery? (Choose all that apply.)A. Physical and logical block corruption is recorded automa...
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其他好文 时间：
2014-08-14 23:29:56
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865
